PROPERTIES OF S-BLOCK ELEMENTS - DEFINITIONFollowing are the properties of s-Block elements:They all are metals They have low ionization enthalpies They lose the outermost electron(s) to form cation Group 1 elements lose 1 electron while the group 2 elements LOSES 2 electrons Metallic character increases down the group Because of high reactivity they are never found pure in nature Reactivity increases down the group Compounds of s-Block are ionic in natureException to this is beryllium and lithiumPROPERTIES OF P-BLOCK ELEMENTS - DEFINITIONFollowing are the properties of p-block elements.They are solids/liquids/gases at room temperature (Br is liquid) They have variable oxidation states They form acidic OXIDES They IMPART no characteristic colour to the flame Generally they form covalent compounds Halogens form salts with alkali metals They have high ionization potentials They have very large electron GAIN enthalpies The aqueous solutions their oxides are acidic in nature